/*
 * Copyright 2019 storyicon@foxmail.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package proxy

import (
	"github.com/asaskevich/govalidator"
	"github.com/storyicon/gos/pkg/meta"
)

// Config contains configuration information for the entire proxy project
type Config struct {
	UpstreamAddr string `valid:"url"`
	ListenAddr   string `valid:"url"`
	GoBinaryPath string
}

func (c *Config) fix() error {
	_, err := govalidator.ValidateStruct(c)
	if err != nil {
		return err
	}

	dc := meta.GetConfig()
	if c.UpstreamAddr == "" {
		c.UpstreamAddr = dc.UpstreamAddr
	}
	if c.GoBinaryPath == "" {
		c.GoBinaryPath = dc.GoBinaryPath
	}
	if c.ListenAddr == "" {
		c.ListenAddr = dc.ProxyListenAddr
	}
	return nil
}
